Collar for pets



FIG. 1 is a top plan view of a collar for pets showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an enlarged front view thereof; and,

FIG. 5 is an enlarged rear elevational view thereof. 

The ornamental design for a collar for pets, as shown. 